EP 0909809 B1 20041124 - Bleach activation
Title (en)
Bleach activation
Title (de)
Bleichaktivierung
Title (fr)
Activation de blanchiment
Publication
Application
Priority
- EP 98307975 A 19980930
- EP 97203019 A 19971001
Abstract (en)
[origin: EP0909809A2] A bleach and oxidation catalyst is provided comprising a catalytically active iron complex including a defined pentadentate nitrogen containing ligand. This type of iron complex can activate hydrogen peroxide or peroxy acids and was found to have favourable stain removal and remarkable dye transfer inhibition properties. In addition, a considerably improved stability of these iron complex compounds in alkaline aqueous environment has been obtained, in particular at the peroxy compound concentrations generally present in the fabric washing liquor.
IPC 1-7
IPC 8 full level
B01J 23/745 (2006.01); B01J 31/18 (2006.01); B01J 31/22 (2006.01); C11D 3/26 (2006.01); C11D 3/39 (2006.01); C11D 3/395 (2006.01); C11D 7/54 (2006.01); D06L 3/02 (2006.01)
IPC 8 main group level
C11D (2006.01)
CPC (source: EP)
C11D 3/3932 (2013.01)
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
EP 0909809 A2 19990421; EP 0909809 A3 19990721; EP 0909809 B1 20041124; AR 017280 A1 20010905; BR 9803859 A 19991207; CA 2248476 A1 19990401; DE 69827738 D1 20041230; DE 69827738 T2 20050407; ES 2234080 T3 20050616; ZA 988963 B 20000403
DOCDB simple family (application)
EP 98307975 A 19980930; AR P980104904 A 19981001; BR 9803859 A 19981001; CA 2248476 A 19980928; DE 69827738 T 19980930; ES 98307975 T 19980930; ZA 988963 A 19981001